Numerical Analysis of Short Pulse Optical Parametric Amplification Using Type I Phase Matching

2004 ◽  
Vol 9 (1) ◽  
pp. 39-53 ◽  
Author(s):  
A. Dement’ev ◽  
O. Vrublevskaja ◽  
V. Girdauskas ◽  
R. Kazragytė
Keyword(s):  
Numerical Analysis ◽  
Second Harmonic ◽  
Short Pulse ◽  
Phase Matching ◽  
Optical Parametric Amplification ◽  
Type I ◽  
Axially Symmetric ◽  
Optical Parametric ◽  
Group Velocity Mismatch ◽  
Velocity Mismatch

The possibilities of efficient amplification and additional shortening of faster moving short fundamental harmonic pulses by the more slowly moving longer second harmonic pulses for type I phase matching are numerically analyzed for initially collimated axially symmetric beams, taking into account diffraction, group velocity mismatch and dispersion of the pulses.

ULTRA-SHORT PULSE NONLINEAR OPTICS: SECOND HARMONIC GENERATION AND SUM FREQUENCY GENERATION WITHOUT GROUP VELOCITY MISMATCH BROADENING

1996 ◽  
Vol 05 (03) ◽  
pp. 477-494 ◽  
Author(s):  
Y.B. BAND ◽  
M. TRIPPENBACH ◽  
C. RADZEWICZ ◽  
J.S. KRASINSKI
Keyword(s):  
Group Velocity ◽  
Second Harmonic ◽  
Short Pulse ◽  
Extraordinary Wave ◽  
Nonlinear Frequency ◽  
Interferometric Technique ◽  
Rutile Crystal ◽  
Group Velocity Mismatch ◽  
Frequency Generation ◽  
Velocity Mismatch

The propagation of short pulses in nonisotropic nonlinear optical media involves new phenomena not encountered in the propagation of longer pulses. We describe two such phenomena here. Specifically, (a) we demonstrate a new method of nonlinear frequency generation for femtosecond light pulses that alleviates group velocity mismatch broad-ening in the generation of second harmonic pulses that are shorter than the input fundamental pulses. The method relies on non-collinear phase-matching and group-velocity-matching. Using our method, we generated 28 fs second harmonic pulses from 33 fs 800 nm fundamental pulses. (b) We show that an optical wavepacket propagating as an extraordinary wave in a non-isotropic dispersive medium experiences a rotation (or tilt) about an axis perpendicular to the propagation vector. We measured the tilting of a femtosecond laser wavepacket in a birefringent rutile crystal. The measurements were carried out using a linear interferometric technique which, in contrast to nonlinear correlation techniques, allows measurement at very low power. A 23 fs delay between the left and right parts of a 30 fs, 800 nm wavepacket was measured for a 1 mm thick rutile crystal.

Blue 473-nm solid state diode pumped Nd:YAG/BiBO microchip laser

2010 ◽  
Vol 18 (1) ◽  
Author(s):  
A. Antończak ◽  
J. Sotor ◽  
M. Matysiak ◽  
K. Abramski
Keyword(s):  
Blue Light ◽  
Second Harmonic ◽  
Nonlinear Crystal ◽  
Phase Matching ◽  
Type I ◽  
Pumping Power ◽  
Diode Pumped ◽  
Light Generation ◽  
Power Diode ◽  
Matching Type

AbstractIn this paper we present a design of a compact, low power diode-pumped CW Nd:YAG laser operating at 946 nm with intracavity blue light generation at 473 nm for battery operated applications. The nonlinear crystal used in the experiment is a BiBO crystal cut for phase-matching type I. Using 0.8 W of pumping power, 20-mW stabile output power of blue light was achieved. The second harmonic generation conversion efficiency was 2.5%.

scholarly journals Optimization of a multi-TW few-cycle 17-µm source based on Type-I BBO dual-chirped optical parametric amplification

2020 ◽  
Vol 28 (10) ◽  
pp. 15138
Author(s):  
Lu Xu ◽  
Kotaro Nishimura ◽  
Akira Suda ◽  
Katsumi Midorikawa ◽  
Yuxi Fu ◽  
...  
Keyword(s):  
Parametric Amplification ◽  
Optical Parametric Amplification ◽  
Type I ◽  
Optical Parametric
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